ICRA'09 Paper Abstract


Paper FrD11.4

Hu, Zheng (University of Delaware), McCauley, Reymond (University of Delaware), Schaeffer, Steve (University of Delaware), Deng, Xinyan (University of Delaware)

Aerodynamics of Dragonfly Flight and Robotic Design

Scheduled for presentation during the Regular Sessions "Biologically-Inspired Robots - IV" (FrD11), Friday, May 15, 2009, 16:30−16:50, Room: 503

2009 IEEE International Conference on Robotics and Automation, May 12 - 17, 2009, Kobe, Japan

This information is tentative and subject to change. Compiled on January 21, 2022

Keywords Biologically-Inspired Robots, Aerial Robotics, Biomimetics


A pair of dynamically scaled robotic dragonfly model wings was developed to investigate the aerodynamic effect of wing-wing interaction in dragonfly flight. Instantaneous aerodynamic forces were measured while forewing-hindwing phase difference was systematically varied. Experimental results showed that, i) for hovering flight, 0 phase difference enhanced the lift force on both forewing and hindwing; 180 reduced the total lift force, but was beneficial for vibration suppression and body posture stabilization. In nature, 0 is employed by dragonflies in acceleration mode while 180 is usually in hovering mode. ii) For forward flight, wing-wing interaction enhances forewing lift while reduced hindwing lift at all phase differences. Furthermore, the total lift was slightly reduced for phase difference from 0 to 90 and significantly reduced by 18% when phase difference is 270. The results consist well with the fact that, dragonflies usually employ 50 to 100 for forward flight, but seldom employ 270. PIV results are shown for wing-wing interaction analysis.



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